Environmental Engineering Reference
In-Depth Information
Table 12.1
Common building materials with ratio of strength r
M,Rk
(MPa) to stiffness E (GPa)
Flexural strength
[MPa]
Flexural youngs modulus
[GPa]
Ratio
Metals
S245
245
210
1.17
S355
355
210
1.69
S450
450
210
2.14
S690
690
210
3.29
Spring steel
1100
210
5.24
Titanium
340
102
3.33
Aluminum
330
70
4.71
Timber
Spruce
16
8
2
Pine
24
11
2.18
Douglas
30
12
2.5
Western hemlock
35
13
2.69
Yellow cedar
40
15
2.67
Oak
30
10
3
Beech
35
10
3.5
Afzelia
40
11
3.64
Bongossi
60
17
3.53
GL24 h
24
11.6
2.07
GL28 h
28
12.6
2.22
GL32 h
32
13.7
2.34
GL36 h
36
14.7
2.45
Birch plywood (6.4 mm)
50.9
12.737
4
Brich plywood (18 mm)
40.2
10.048
4
Combi-plywood (6.4 mm)
50.8
12.69
4
Combi-plywood (18 mm)
35.8
8.95
4
Softwood plywood
(6.4 mm)
29.1
9.462
3.08
Softwood plywood
(18 mm)
23
7.464
3.08
Bamboo
213
19.129
11.13
FRP
Type
CRFP-HAT
2800
165
16.97
CRFP-IM
2800
210
13.33
CRFP-HM
1350
300
4.5
Search WWH ::
Custom Search